Single Storey Extension Costs in Cirencester | 2026 Price Guide
2026 Prices

Single Storey Extension Costs in Cirencester

Ground floor extension to increase living space - local pricing for Gloucestershire.

Typical estimate for Cirencester
£28,750 – £57,500

Mid-range single storey extension • per project • 10-16 weeks

Standard band
£28,750 - £57,500
Premium band
£57,500 - £115,000

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Adjust the sliders below to reflect your project. Each factor is based on what typically affects single extension costs in Cirencester.

Your adjusted estimate
£28,750£57,500
Matches typical estimate — adjust sliders for your needs

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Slider figures are indicative guides only, not formal quotes. Final costs depend on site surveys, specifications, and contractor pricing.

About Single Storey Extension in Cirencester

Considering a Single Storey Extension project in Cirencester? Getting a handle on the true costs upfront is crucial for making informed decisions. Our calculator uses Cirencester-specific pricing data to generate accurate estimates.

The typical cost for Single Storey Extension in Cirencester typically runs £28,750 to £57,500. That said, actual costs depend on multiple factors.

What's Included

  • Architectural drawings and planning
  • Groundworks and foundations
  • Walls, roof and structural work
  • Windows and external doors
  • Electrical and plumbing first fix
  • Plastering and second fix
  • Basic decoration

Price Factors

Several factors influence your overall Single Storey Extension cost in Cirencester. Property type, site access, and individual requirements all play a role.

The sliders in the estimate calculator above map to these factors — move each one to match your project.

  • Extension size (per square metre)
  • Foundation type required
  • Roof design (flat, pitched)
  • Window and door specification
  • Internal finish requirements
  • Connection to existing structure

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Receive as many as 3 no-cost Single Storey Extension quotes from trusted Cirencester professionals. Review prices and pick the ideal option for your needs.

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Consumer Advice: Hiring a Tradesperson

Before committing to any single storey extension project, follow these essential tips to protect yourself and ensure a successful outcome.

Get Multiple Quotes

Always obtain at least 3 written quotes from different contractors. Compare not just prices, but what's included, timelines, and payment terms. Be wary of quotes significantly lower than others.

Check Credentials

Verify the trader is legitimate. Ask for proof of insurance (public liability and employer's liability), relevant trade certifications, and check if they're registered with trade bodies like TrustMark, FMB, or NICEIC.

Review Past Work

Request references from previous customers and photos of completed projects. Check online reviews on Google, Checkatrade, or Trustpilot. A reputable trader will be happy to share their track record.

Get Everything in Writing

Insist on a detailed written contract covering the full scope of work, materials to be used, start and completion dates, total cost, and payment schedule. Never rely on verbal agreements alone.

Be Careful with Deposits

Never pay the full amount upfront. A reasonable deposit is typically 10-25% to cover initial materials. Pay the balance only upon satisfactory completion. Avoid cash payments where possible.

Understand Your Rights

Under the Consumer Rights Act 2015, work must be carried out with reasonable care and skill. If things go wrong, you have the right to request a repair, price reduction, or refund.

Agree Clear Timelines

Establish a realistic project timeline with key milestones. Include clauses for delays and ensure you're informed of any changes. Good communication throughout prevents misunderstandings.

Check Planning Requirements

For major works, confirm whether planning permission or building regulations approval is needed. The contractor should advise, but ultimately it's your responsibility as the homeowner.

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